"Out of the Box" B&W: GF1 or EP-1/2?

Reading about wStudio's EP-1 purchase and comment on "shooting at ISO 6400 B&W" it got me thinking about which camera actually had better B&W out of the box (hint, no Photoshop post processing opinions required ;-)). I don't want this to be a GF-1 vs EP-1/2 war but -STRICTLY- on B&W straight from the camera, which one produces better results?